How has research improved cancer treatment?

Some of the most intensive and active research has been in the field of angiogenesis, which attempts to conquer a disease by controlling the blood vessels that feeds it. A large amount of research has resulted in the development of active agents that blocks blood vessels and starves tumors of oxygen. We are now beginning to see signals of the benefits of this approach in patients.  However, it is still early days, further research is required, which will take time.